On Sat, Nov 11, 2017 at 4:03 AM, [799] via coreboot <[email protected]> wrote:
> Hello, > > I had to reflash my stock original BIOS after I couldn't get Sleep&Resume > working on my Lenovo X230. > > I am in a situation where I was able to get 2 situations: > > 1) Situation 1: > working sleep+resume in Linux. > Additional Payloads works. > Booting into windows (I have a dual boot setup) results in a black screen > (no video output) > I assume you're using native graphics init here? In the non-VBIOS init case, the Intel Windows driver expects that the IGD OpRegion ACPI data will be valid/populated, and one of the things needed is the VBT (video bios table) data. This data can be extracted by coreboot from an included (but not executed) VBIOS, or via a separate vbt.bin file. Without one of these two options, you get a black screen. There might also be some other fields in the IGD OpRegion that need to be set correctly. I have all of this working in my own tree, but haven't had a chance to determine which are essential and upstream them. > > 2) Situation 2: > Extracting the BLOBs from the original ROM and adding them to my Coreboot > Bios and using SeaBIOS I was able to boot into windows with graphics. > Unfortunately this breaks: > - Sleep & Resume > - additional Payloads won't work > define "breaks sleep and resume." Breaks how? what OS(es)? Are you re-running the VBIOS on S3 resume? If so, I'd deselect that option/ > > As I really need to get sleep & resume working an I also want to be able > to boot into windows for special use cases (business) I want to rebuild > Coreboot from scratch. > Unfortunately I did so several times, no results. > > I don't think that the Use Case "Coreboot + Windows + Sleep Resume" is so > uncommon and would like to hear if someone has a running setup and what you > did to make it work. > I have suspend/resume working under both Windows and Linux, using the following: VBIOS + SeaBIOS NGI + vbt.bin + SeaBIOS NGI + vbt.bin + Tianocore VBIOS + Tianocore vbt.bin + UEFI GOP driver + Tianocore so it's just figuring out what you're missing > > Giving up sleep/resume to get the additional freedom of Coreboot is a big > trade-off. > > Regards > > [799] > -- > coreboot mailing list: [email protected] > https://mail.coreboot.org/mailman/listinfo/coreboot >
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